| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an exhaust-gas cleaning device, in which a misjudging on time of regeneration completion and time of regeneration start caused by oil-ash deposit or unevenness of productions and aging of a sensor is prevented from occurring. <P>SOLUTION: The exhaust-gas cleaning device is provided with a filter (1) in an exhaust-gas path (22) for collecting particulates. The cleaning device comprises regeneration treatment means (30, 2) for regenerating the filter (1) by raising exhaust-gas temperature from starting time to completion time of the regeneration treatment, a means (30) for obtaining a maximum value of the rate of decrease in the pressure loss of the filter (1) in the regeneration treatment conducted by the means (30, 2), and a means (30) for controlling the regeneration starting time or completion time based on the maximum value of the rate of decrease of the pressure loss. <P>COPYRIGHT: (C)2003,JPO</p> |
